not enough to be out of business,
but enough to understand, that anything can happen, even the most unexpected,
at any time....

rules of money mgmt now for me are the first rule to follow, everything else is secondary or almost irrelevant if you don't follow rule number 1....

a friend of mine who had traded and made money everyday for almost three weeks in a row, lost 65% of his trading capital during tuesday and wednesday shorting the bonds....
he got lucky ib sold half his position at the evening margin call.

months of hard work blown in one bad trade in one day.

very screwed. this is what happens most often when you start making a living in this business, you start forgetting the rules...